225806788 has 6 divisors (see below), whose sum is σ = 395161886. Its totient is φ = 112903392.

The previous prime is 225806783. The next prime is 225806807. The reversal of 225806788 is 887608522.

It is a happy number.

225806788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 115304644 + 110502144 = 10738^2 + 10512^2 .

It is not an unprimeable number, because it can be changed into a prime (225806783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28225845 + ... + 28225852.

Almost surely, 2^225806788 is an apocalyptic number.

It is an amenable number.

225806788 is a deficient number, since it is larger than the sum of its proper divisors (169355098).

225806788 is a wasteful number, since it uses less digits than its factorization.

225806788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56451701 (or 56451699 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 225806788 is about 15026.8688687963. The cubic root of 225806788 is about 608.9463023918.

The spelling of 225806788 in words is "two hundred twenty-five million, eight hundred six thousand, seven hundred eighty-eight".